Service Development
- WAP applications
- Windows CE applications
- Psion EPOC applications
- Palmpilot applications
- SMS applications
- JINI
 The
WAP specification was released in its first version the 30th of april 1998. Since then
most cellular vendors has been active to develop network components and terminals for WAP.
Probably we will se some WAP solutions during 1999.
WAP gives a service development architecture similar to internet. The cornerstone of
wap is WML, Wireless Markup Language. WML is based on XML, a new standard that might
replace html as the standard for web pages on the internet. WML pages can be stored on
standard internet servers.
Another part of WAP is WML Script (WMLS), a scripting language similar to Java script.
WMLS gives added functionality to WAP applications. Examples of WMLS functionality can be
accessing the address book of the phone or accessing a wallet on a smart card.
WTA (Wireless Telephony Application) is another exiting part of WAP. The intention of
WTA is to develop telephony applications using WAP. Examples of such services can be call
screening. WTA was not completely finished as a part of the 1.0 specification, but there
should be a good version as a part of the next release of the specification spring 1999.
The figure shows an imaginary wap terminal. A wap terminal can be everything from a
wireless phone with a small display, to a large screen wap-browsing only terminal. A
challange for a small device will be the keyboard. A complete keyboard takes a lot of
space, while a traditional phone keyboard is to limited. Here it will be room for
innovation.
More about WAP
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If you want to write an article about how to make Windows CE applications; please send
us an email.
See Internet
Programming with Windows CE
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EPOC is a real time operating system developed by Psion, and the
adoåted by Symbian targeting small
handheld devices like Communicater and Smartphone. EPOC was designed keeping in
view the requirement of these types of Wireless Information Devices or just
WID’s which have their own limitations as small, different screen sizes, Less
battery power and less memory and
processing power. The operating system is developed using Object-Oriented
technology implemented in C++. Besides this Java Virtual Machine (JVM) is also
implemented. EPOC provides an Application development framework which can be
used for developing applications. Since the OS intrinsically supports Object
Orientation, powerful, compact and efficient
applications can be developed. The components could easily be reused as
well.
See EPOC application development in C++
Overview
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 The Palm from
3Com has become very successful in USA, and is now spreading through the world. The Palm
is today focused on stand alone applications, but the focus on services is increasing.
Today the model is based on synchronisation, with the Palm synchronising with a PC. With a
PC connected to the internet, this gives the opportunity of downloading and updating
internet content on the Palm device.
Palm is now developing Palm VII which will communicate using Mobitex, a narrow band
data only network. This model will propably also be implemented on GSM and other digital
networks at a later time. Palm VII comes with Web clipping, delivering services to the
Palm
If the Palm user wants a browser on the Palm this does not come as a standard product
from 3Com. But there are standalone products available in the market.
Until the browsing environment is settled on the Palm, there will be companies
developing solutions to cover needs in the market. One of them is IBM, which has developed
Mobile Connect to connect a Palm device to intranets.
Read more about Palm service development
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If you want to write an article about how to make SMS applications; please send us an email.
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If you want to write an article about how to make JINI applications; please send us an email.
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